Journal of Marine Science and Engineering, Journal Year: 2024, Volume and Issue: 12(7), P. 1147 - 1147

Published: July 8, 2024

The horizontal axis tidal turbine, as a crucial device for capturing energy, has gained significant attention because it better energy efficiency performance. Enhancing the performance of foils, vital part turbine blades, can significantly improve Among numerous methods to enhance foil performance, Gurney flap due its avoidance complex structural design. Currently, there is limited research on optimizing design flaps while considering dynamic foils. In this study, S809 with blade cross-section was selected subject, multi-objective optimization platform created by integrating algorithm Computational Fluid Dy-namics (CFD) numerical simulation techniques. objective hydrofoil geometric structure flap. improvement lift and size stall hysteresis loop are used variables in study evaluate hydrofoil’s optimal Latin hypercube method process choose sample locations, Kriging approximation model determine relationship between variables. Meanwhile, Non-Dominated Sorting Genetic Algorithm-II (NSGA-II) create solving problem, optimized results validated using CFD. Comparative validation show that quantifying during pitching oscillation rational accurate. This explores mechanism through in-depth CFD simulations finds affects flow characteristics at trailing edge, thereby influencing It increases pressure difference suction surfaces, thus enhancing lift. Finally, article provides three recommended parameters hydrofoil. serve reference application

Language: Английский